melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.
Metrics
Affected Vendors & Products
References
History
Thu, 05 Feb 2026 15:15:00 +0000
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| Metrics |
ssvc
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Thu, 05 Feb 2026 11:45:00 +0000
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| First Time appeared |
Chainguard-dev
Chainguard-dev melange |
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| Vendors & Products |
Chainguard-dev
Chainguard-dev melange |
Wed, 04 Feb 2026 20:00:00 +0000
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| Description | melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3. | |
| Title | melange QEMU runner could write files outside workspace directory | |
| Weaknesses | CWE-22 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-02-04T19:31:35.608Z
Updated: 2026-02-05T14:33:15.392Z
Reserved: 2026-01-27T14:51:03.059Z
Link: CVE-2026-24843
Updated: 2026-02-05T14:20:18.291Z
Status : Awaiting Analysis
Published: 2026-02-04T20:16:05.393
Modified: 2026-02-05T14:57:20.563
Link: CVE-2026-24843
No data.